Child, middle and eldery population
Percentages of childs, middle generation and eldery population in 195 countries.
A data frame with 195 rows and 4 variables
<15numeric vector of percentages of sand
15-60numeric vector of percentages of silt
60+numeric vector of percentages of clay
countrycountry of origin
The rows sum up to 100.
extracted by Karel Hron and Eva Fiserova, implemented by Matthias Templ
Fiserova, E. and Hron, K. (2012). Statistical Inference in Orthogonal Regression for Three-Part Compositional Data Using a Linear Model with Type-II Constraints. Communications in Statistics - Theory and Methods, 41 (13-14), 2367-2385.
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